Increase title size in link output

The title and text of the link listing output is quite small. That may be OK for the text, but I’d like the title to stand out a bit better.

Is there a way to increase the font size for the title (and separterly for the text)? Normal post/page titles and text are larger than what I see in the Simple Links output.

Example: https://artwinefusion.com/sponsors/
Note: I’ve used your CSS solution to put five different sections into 50% columns
.simple-links-item {
float: left;
width: 50%;
list-style: none;
}